You may want to reconsider your stance on the Blood of Jesus as simply a summary of His death or a figurative concept.Blood of itself has no value in this regard, and even the blood of Jesus was ordinary human blood, and if sprinkled by accident on a few at the foot of the cross, this would have had no healing effect. The blood of Jesus is a figurative concept based upon the fact thar he died and his blood was poured out. The figure of blood has a history associated with the four major Sacrifices, the Sin, Trespass, Burnt and Peace Offering and also the Passover Lamb and the blood than was sprinkled or painted on the door of the household. Some of the language and ideas today divorce "the blood of Christ" from this basis, but the blood of Christ is a summary of the whole concept of the Atoning Work achieved by Christ. There are other terms used, as Jesus gave his body in sacrifice, he poured out his soul unto death, and he gave himself. I do not deny that the blood of Jesus is a valid summary of ALL of this, and the blood of Jesus is the confirmation of the New Covenant.
Acts 20:28 ESV
Pay careful attention to yourselves and to all the flock, in which the Holy Spirit has made you overseers, to care for the church of God, which he obtained with his own blood.
Ephesians 2:13
But now in Christ Jesus you who once were far off have been brought near by the blood of Christ.
Hebrews 9:14
how much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify our conscience from dead works to serve the living God.
Hebrews 10:22
let us draw near with a true heart in full assurance of faith, with our hearts sprinkled clean from an evil conscience and our bodies washed with pure water.
Hebrews 13:20
Now may the God of peace who brought again from the dead our Lord Jesus, the great shepherd of the sheep, by the blood of the eternal covenant,
1 John 1:7
But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.
Revelation 1:5
and from Jesus Christ the faithful witness, the firstborn of the dead, and the ruler of kings on earth. To him who loves us and has freed us from our sins by his blood